Table 2.

Presence of the top 90% discriminating genera across the intertidal

	Station 1	Runnel 3	Runnel 5	Runnel 7	Runnel 9
September 2007
Dissimilarity	–	66.67	77.11	82	95.33
Station 1	Marylynnia
	Cobbia	X
	Pomponema		X
	Dichromadora	X		X
	Chromadorita	X		X
	Actinonema
	Ceramonema sp 2		X
	Xyalidae Gen.
	Nannolaimoides
	Richtersia	X		X
	Latronema
	Paracomesoma
	Xyala sp 2	X	X	X
	Catanema sp 1		X
New		Desmodora sp 1	X
		Tricoma	X	X
		Xyala sp 1	X
		Rhynchonema	X	X
			Epsilonematidae gen.	X	X
			Metachromadora	X
			Oncholaimidae Gen.	X
				Desmodora sp 2	X
				Chromaspirinia
				Ceramonema sp 3
				Enoploides
				Gammanema	X
					Theristus sp 2
					Microlaimus sp 2
March 2008
Dissimilarity	–	63.66	75.85	85.37	86.26
Station 1	Pomponema sp 1	X	X
	Xyalidae Gen.	X	X		X
	Cobbia	X
	Dichromadora
	Marylynnia	X
	Promonhystera
	Ceramonema sp 2
	Daptonema	X
	Cyartonema
	Nannolaimoides
	Pomponema sp 2
	Stylotheristus
	Prochromadorella		X	X
	Richtersia	X		X
	Viscosia
New		Chromadorita	X	X
		Xyala sp 1
		Metachromadora	X	X
		Desmodora sp 1			X
			Chromadorina	X	X
			Epsilonematidae gen.	X	X
			Odontophora	X
			Tricoma	X	X
			Enoploides		X
			Neochromadora
				Chromaspirinia
				Epacanthion
				Chromadoridae gen.
				Rhynchonema
					Microlaimus sp 2
					Xyala sp 1
					Theristus sp 2
					Metoncholaimus
					Oxyonchus

Dissimilarity result from SIMPER analyses between station 1 and the respective runnel, X contributing genus that has been listed before, New appearance of a new discriminating genus